Error Message (Hydraulic system) (1) Power shift proportional valve 187 PPID 1190 3 (2) Pedal pressure sensor 187 PID 91 3 Volvo Construction Equipment Customer Support UPDATE - EC160B~460B - 16 Error Code From MID Signal FMI Code Central Warning lamp Buzzer Source 31 187 PPID 1190 3 Blink caution Power shift PV, High voltage 187 PPID 1190 4 Blink caution Power shift PV, low voltage 187 PPID 1190 5 Blink caution Power shift PV, open circuit Error Code From MID Signal FMI Code Central Warning lamp Buzzer Source 33 187 PID 91 3 Blink caution Pressure sensor, High voltage 187 PID 91 4 Blink caution Pressure sensor, low voltage 187 PID 91 5 Blink caution Pressure sensor, open circuit